Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh hai
thanh toan » thanh hoa, thanh san, tinh toan
thu sach » thuat sach, thuoc sach, thu hoach
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
tu sach » su sach, te sach, tu cach
xuc va » duc va, tuc va, luc va
va cam » va cham, va cac, va cao

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) OR (tu sach)) ly nang xa hoi. hieu va cam xuc va ((thanh toan) or (thanh phan)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ly nang xa hoi. hieu va cam xuc va ((thanh toan) OR (thanh phan)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (tu sach)) ly nang xa hoi. hieu va cam xuc va ((thanh toan) or (thanh phan)) cua tre".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) OR (tu sach)) ly nang xa hoi. hieu va cam xuc va ((thanh toan) or (thanh phan)) cua tre*.